6654025066 has 16 divisors (see below), whose sum is σ = 10755607464. Its totient is φ = 3069146304.

The previous prime is 6654025043. The next prime is 6654025087. The reversal of 6654025066 is 6605204566.

It can be written as a sum of positive squares in 4 ways, for example, as 5323891225 + 1330133841 = 72965^2 + 36471^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38605 + ... + 121648.

Almost surely, 2^6654025066 is an apocalyptic number.

6654025066 is a deficient number, since it is larger than the sum of its proper divisors (4101582398).

6654025066 is a wasteful number, since it uses less digits than its factorization.

6654025066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161865.

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 6654025066 is about 81572.2076812930. The cubic root of 6654025066 is about 1880.8816848648.

The spelling of 6654025066 in words is "six billion, six hundred fifty-four million, twenty-five thousand, sixty-six".